Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim thanh so snippets" » "kinh thanh so snippets", "gia thanh so snippets", "nam thanh so snippets", "kim thanh son snippets", "kim thanh do snippets", "kim than so snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("kim thanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim thanh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim thanh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim thanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.